trunk/Include/wptGPG.h

/* wptGPG.h - GnuPG interface
 *      Copyright (C) 2000-2005 Timo Schulz
 *
 * This file is part of WinPT.
 *
 * WinPT is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License 
 * as published by the Free Software Foundation; either version 2 
 * of the License, or (at your option) any later version.
 *  
 * WinPT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License 
 * along with WinPT; if not, write to the Free Software Foundation, 
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 
 */

#ifndef WPT_GPG_H
#define WPT_GPG_H

#include "w32gpgme.h"
#include "wptNLS.h"


#define NO_STRICT 0

#define key_is_useable(key) (!(key)->revoked && !(key)->expired && !(key)->disabled)

enum {
    SETUP_KEYGEN    = 1,
    SETUP_IMPORT    = 2,
    SETUP_EXISTING  = 3
};

enum {
    GPG_CMD_DECRYPT = 0,
    GPG_CMD_SIGN    = 1
};

enum {
    KEYCACHE_PRV = 0,
    KEYCACHE_PUB = 1
};

enum {
    ENTRY_OPAQUE = 1,
    ENTRY_SINGLE = 2,
    ENTRY_MULTI  = 3,
    ENTRY_GROUP  = 4,
};

struct gpg_card_s;
typedef struct gpg_card_s * gpg_card_t;

/* GPG file association context. */
struct gpg_filetype {    
    const char *descr;
    const char *ext;
    int nicon;
};

/* Keycache refresh context. */
struct refresh_cache_s {
    int kr_reload;
    int kr_update;
    int tr_update;
};

struct gpg_option_s {
    struct gpg_option_s * next;
    char * name;
    char * val;
    unsigned int used:1;
    int type;  
};
typedef struct gpg_option_s * gpg_option_t;

struct gpg_member_s {
    struct gpg_member_s * next;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_member_s * gpg_member_t;

struct gpg_group_s {
    struct gpg_group_s * next;
    struct gpg_member_s * list;
    char * name;
    unsigned int used:1;  
};
typedef struct gpg_group_s * gpg_group_t;

struct gpg_optfile_s {
    struct gpg_option_s * list;
    struct gpg_group_s * grp;
};
typedef struct gpg_optfile_s * gpg_optfile_t;

static gpg_filetype gpg_filetypes[] = {
    {"GPG Detached Signature", ".sig", 1},
    {"GPG Encrypted Data",     ".gpg", 2},
    {"GPG Armored Data",       ".asc", 2},
    {0}
};

struct passphrase_cb_s {
    int gpg_cmd;
    int pwd_init;
    char *pwd;
    char info[1024]; /* hold up the info message */
    char *title;
    char keyid[16+1];
    HWND hwnd;
    int cancel;
    int is_card;
    gpgme_ctx_t gpg;
};


static const char * gpg_sigstat[] = {
    _("Error during verification process."),
    _("The signature is good."),
    _("The signature is BAD!"),
    _("The signature could not be checked due to a missing key."),
    _("No valid OpenPGP signature."),
    _("Signature Error"),
    _("Good Signature (Expired Key)"),
    _("Good Signature (Revoked Key)"),
    NULL
};

int sigsum_to_index (gpgme_sigsum_t sum);
#define SIGSTAT_MASK 8
#define get_gpg_sigstat(sum) gpg_sigstat[sigsum_to_index ((sum)) % SIGSTAT_MASK]

/* This variable is 1 if IDEA is available. */
extern int idea_available;

/*-- wptGPG.cpp --*/
char* get_gnupg_default_key( void );
int set_gnupg_default_key( const char *key );
char* get_gnupg_config (void);
char* get_gnupg_keyring_from_options( const char *fname, int pub );
int check_gnupg_config (const char *fname, int *secrings, int *pubrings);
char* get_gnupg_path( void );
int check_gnupg_prog( void );
int gnupg_access_files (void);
char* get_gnupg_prog( void );
char* get_gnupg_keyring (int pub, int strict);
char* get_gnupg_cfgfile (void);
int set_gnupg_options( const char *buf, size_t buflen );

int check_gnupg_options (const char *buf);
void init_gnupg_table (void);
void free_gnupg_table (void);
int keyring_check_last_access (void);
const char* gnupg_check_file_ext (const char * fname);
int gpg_check_permissions (int showmsg);
int gnupg_check_homedir (void);
int gnupg_access_keyring (int _pub);
void gnupg_backup_options ();
void gnupg_backup_keyrings (void);
void gnupg_display_error (void);
int gnupg_copy_keyrings (void);
int check_gnupg_engine (int *r_major, int *r_minor, int *r_patch);

gpg_card_t smartcard_init (void);

/*-- wptGPGME.cpp --*/
const char * get_signature_status( gpgme_sigsum_t sigstat );
void keycache_reload( HWND dlg );

int get_pubkey (const char *keyid, gpgme_key_t *ret_key);
int winpt_get_pubkey (const char *keyid, struct winpt_key_s *k);
int get_seckey (const char *keyid, gpgme_key_t *ret_skey);
int winpt_get_seckey (const char *keyid, struct winpt_key_s *k);

void keycache_reload( HWND dlg );
void keycache_release( void );
gpgme_error_t keycache_update (int is_sec, const char *keyid);
gpgme_error_t keycache_init( const char *pubring, const char * secring );
void keycache_set_reload( int yes );
int keycache_get_reload( void );
gpgme_keycache_t keycache_get_ctx( int _pub );

int count_insecure_elgkeys( void );

int gpgme_encrypt_symmetric( void );

#define gpgme_enable_logging( ctx ) \
    gpgme_control( (ctx), GPGME_CTRL_LOGGING, 1 )

#define gpgme_show_error( hwnd, rc, ctx, title, mode )          \
do {                                                            \
    if( (rc) == GPGME_Internal_GPG_Problem && ctx ) {           \
        char * strerr = gpgme_get_logging( (ctx) );             \
        msg_box( (hwnd), (strerr)? (strerr) :                   \
        _("No GPG error description available."), title, mode );\
        safe_free( strerr );                                    \
    }                                                           \
    else {                                                      \
        msg_box( (hwnd), gpgme_strerror( (rc) ),                \
                  title, mode );                                \
    }                                                           \
} while ( 0 )

/*-- wptGPGParser.cpp --*/
/* find */
gpg_group_t find_group( gpg_optfile_t opt, const char *str );
gpg_option_t find_option( gpg_optfile_t opt, const char *str );
gpg_member_t find_member( gpg_optfile_t opt, const char *grp, const char *str );
/* delete */
int delete_group( gpg_optfile_t opt, const char *str );
int delete_member( gpg_optfile_t opt, const char *grp, const char *str );
int delete_option( gpg_optfile_t opt, const char *str );
/* add */
int modify_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_entry( gpg_optfile_t opt, int type, const char *name, const char *val );
int add_member( gpg_optfile_t opt, const char *grp, const char *str );
int add_group( gpg_optfile_t opt, const char *str );
/* high-level */
int parse_gpg_options( const char *file, gpg_optfile_t *r_opt );
int commit_gpg_options( const char *file, gpg_optfile_t opt );
void release_gpg_options( gpg_optfile_t opt );
/* memory */
void release_group( gpg_group_t grp );

/*-- wptPassphraseCB.cpp --*/
enum {
    PASSDLG_REPEAT = 0,
    PASSDLG_INIT = 1,  
    PASSDLG_STRICT = 2
};

void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
                            int cmd, HWND hwnd, const char *title);
void release_gpg_passphrase_cb (passphrase_cb_s *cb);

char * request_passphrase (const char *title, int flags, int *ret_cancel);
char * request_passphrase2 (const char *title, int flags, int *ret_cancel);
const char * passphrase_cb (void *opaque, const char * desc, void *r_hd);
char * get_key_userid (const char *keyid);
int check_passwd_quality (const char *pass, int strict);

#endif /* WPT_GPG_H */
1	twoaday	2	/* wptGPG.h - GnuPG interface
2			* Copyright (C) 2000-2005 Timo Schulz
3			*
4			* This file is part of WinPT.
5			*
6			* WinPT is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU General Public License
8			* as published by the Free Software Foundation; either version 2
9			* of the License, or (at your option) any later version.
10			*
11			* WinPT is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with WinPT; if not, write to the Free Software Foundation,
18			* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#ifndef WPT_GPG_H
22			#define WPT_GPG_H
23
24	twoaday	23	#include "w32gpgme.h"
25	twoaday	2	#include "wptNLS.h"
26
27	twoaday	23
28	twoaday	2	#define NO_STRICT 0
29
30	twoaday	23	#define key_is_useable(key) (!(key)->revoked && !(key)->expired && !(key)->disabled)
31
32	twoaday	2	enum {
33			SETUP_KEYGEN = 1,
34			SETUP_IMPORT = 2,
35			SETUP_EXISTING = 3
36			};
37
38			enum {
39			GPG_CMD_DECRYPT = 0,
40			GPG_CMD_SIGN = 1
41			};
42
43			enum {
44			KEYCACHE_PRV = 0,
45			KEYCACHE_PUB = 1
46			};
47
48			enum {
49			ENTRY_OPAQUE = 1,
50			ENTRY_SINGLE = 2,
51			ENTRY_MULTI = 3,
52			ENTRY_GROUP = 4,
53			};
54
55	twoaday	23	struct gpg_card_s;
56			typedef struct gpg_card_s * gpg_card_t;
57
58			/* GPG file association context. */
59	twoaday	2	struct gpg_filetype {
60			const char *descr;
61			const char *ext;
62			int nicon;
63			};
64
65	twoaday	23	/* Keycache refresh context. */
66	twoaday	2	struct refresh_cache_s {
67			int kr_reload;
68			int kr_update;
69			int tr_update;
70			};
71
72			struct gpg_option_s {
73			struct gpg_option_s * next;
74			char * name;
75			char * val;
76			unsigned int used:1;
77			int type;
78			};
79			typedef struct gpg_option_s * gpg_option_t;
80
81			struct gpg_member_s {
82			struct gpg_member_s * next;
83			char * name;
84			unsigned int used:1;
85			};
86			typedef struct gpg_member_s * gpg_member_t;
87
88			struct gpg_group_s {
89			struct gpg_group_s * next;
90			struct gpg_member_s * list;
91			char * name;
92			unsigned int used:1;
93			};
94			typedef struct gpg_group_s * gpg_group_t;
95
96			struct gpg_optfile_s {
97			struct gpg_option_s * list;
98			struct gpg_group_s * grp;
99			};
100			typedef struct gpg_optfile_s * gpg_optfile_t;
101
102			static gpg_filetype gpg_filetypes[] = {
103			{"GPG Detached Signature", ".sig", 1},
104			{"GPG Encrypted Data", ".gpg", 2},
105			{"GPG Armored Data", ".asc", 2},
106			{0}
107			};
108
109			struct passphrase_cb_s {
110			int gpg_cmd;
111			int pwd_init;
112	twoaday	23	char *pwd;
113	twoaday	2	char info[1024]; /* hold up the info message */
114	twoaday	23	char *title;
115			char keyid[16+1];
116	twoaday	2	HWND hwnd;
117			int cancel;
118			int is_card;
119	twoaday	23	gpgme_ctx_t gpg;
120	twoaday	2	};
121
122	twoaday	23
123	twoaday	2	static const char * gpg_sigstat[] = {
124			_("Error during verification process."),
125			_("The signature is good."),
126			_("The signature is BAD!"),
127			_("The signature could not be checked due to a missing key."),
128			_("No valid OpenPGP signature."),
129			_("Signature Error"),
130			_("Good Signature (Expired Key)"),
131			_("Good Signature (Revoked Key)"),
132			NULL
133			};
134
135	twoaday	23	int sigsum_to_index (gpgme_sigsum_t sum);
136	twoaday	2	#define SIGSTAT_MASK 8
137	twoaday	23	#define get_gpg_sigstat(sum) gpg_sigstat[sigsum_to_index ((sum)) % SIGSTAT_MASK]
138	twoaday	2
139	twoaday	23	/* This variable is 1 if IDEA is available. */
140	twoaday	2	extern int idea_available;
141
142			/-- wptGPG.cpp --/
143			char* get_gnupg_default_key( void );
144			int set_gnupg_default_key( const char *key );
145			char* get_gnupg_config (void);
146			char* get_gnupg_keyring_from_options( const char *fname, int pub );
147			int check_gnupg_config (const char fname, int secrings, int *pubrings);
148			char* get_gnupg_path( void );
149			int check_gnupg_prog( void );
150			int gnupg_access_files (void);
151			char* get_gnupg_prog( void );
152			char* get_gnupg_keyring (int pub, int strict);
153			char* get_gnupg_cfgfile (void);
154			int set_gnupg_options( const char *buf, size_t buflen );
155
156			int check_gnupg_options (const char *buf);
157			void init_gnupg_table (void);
158			void free_gnupg_table (void);
159			int keyring_check_last_access (void);
160			const char* gnupg_check_file_ext (const char * fname);
161			int gpg_check_permissions (int showmsg);
162			int gnupg_check_homedir (void);
163			int gnupg_access_keyring (int _pub);
164	twoaday	23	void gnupg_backup_options ();
165	twoaday	2	void gnupg_backup_keyrings (void);
166			void gnupg_display_error (void);
167			int gnupg_copy_keyrings (void);
168			int check_gnupg_engine (int r_major, int r_minor, int *r_patch);
169
170	twoaday	23	gpg_card_t smartcard_init (void);
171	twoaday	2
172			/-- wptGPGME.cpp --/
173	twoaday	23	const char * get_signature_status( gpgme_sigsum_t sigstat );
174	twoaday	2	void keycache_reload( HWND dlg );
175
176	twoaday	23	int get_pubkey (const char keyid, gpgme_key_t ret_key);
177			int winpt_get_pubkey (const char keyid, struct winpt_key_s k);
178			int get_seckey (const char keyid, gpgme_key_t ret_skey);
179			int winpt_get_seckey (const char keyid, struct winpt_key_s k);
180	twoaday	2
181			void keycache_reload( HWND dlg );
182			void keycache_release( void );
183	twoaday	22	gpgme_error_t keycache_update (int is_sec, const char *keyid);
184	twoaday	2	gpgme_error_t keycache_init( const char pubring, const char secring );
185			void keycache_set_reload( int yes );
186			int keycache_get_reload( void );
187			gpgme_keycache_t keycache_get_ctx( int _pub );
188
189			int count_insecure_elgkeys( void );
190
191			int gpgme_encrypt_symmetric( void );
192
193			#define gpgme_enable_logging( ctx ) \
194			gpgme_control( (ctx), GPGME_CTRL_LOGGING, 1 )
195
196			#define gpgme_show_error( hwnd, rc, ctx, title, mode ) \
197			do { \
198	twoaday	18	if( (rc) == GPGME_Internal_GPG_Problem && ctx ) { \
199	twoaday	2	char * strerr = gpgme_get_logging( (ctx) ); \
200			msg_box( (hwnd), (strerr)? (strerr) : \
201			_("No GPG error description available."), title, mode );\
202			safe_free( strerr ); \
203			} \
204			else { \
205			msg_box( (hwnd), gpgme_strerror( (rc) ), \
206			title, mode ); \
207			} \
208			} while ( 0 )
209
210			/-- wptGPGParser.cpp --/
211			/* find */
212			gpg_group_t find_group( gpg_optfile_t opt, const char *str );
213			gpg_option_t find_option( gpg_optfile_t opt, const char *str );
214			gpg_member_t find_member( gpg_optfile_t opt, const char grp, const char str );
215			/* delete */
216			int delete_group( gpg_optfile_t opt, const char *str );
217			int delete_member( gpg_optfile_t opt, const char grp, const char str );
218			int delete_option( gpg_optfile_t opt, const char *str );
219			/* add */
220			int modify_entry( gpg_optfile_t opt, int type, const char name, const char val );
221			int add_entry( gpg_optfile_t opt, int type, const char name, const char val );
222			int add_member( gpg_optfile_t opt, const char grp, const char str );
223			int add_group( gpg_optfile_t opt, const char *str );
224			/* high-level */
225			int parse_gpg_options( const char file, gpg_optfile_t r_opt );
226			int commit_gpg_options( const char *file, gpg_optfile_t opt );
227			void release_gpg_options( gpg_optfile_t opt );
228			/* memory */
229			void release_group( gpg_group_t grp );
230
231			/-- wptPassphraseCB.cpp --/
232	twoaday	22	enum {
233			PASSDLG_REPEAT = 0,
234			PASSDLG_INIT = 1,
235			PASSDLG_STRICT = 2
236			};
237	twoaday	2
238	twoaday	23	void set_gpg_passphrase_cb (passphrase_cb_s *cb, gpgme_ctx_t ctx,
239			int cmd, HWND hwnd, const char *title);
240			void release_gpg_passphrase_cb (passphrase_cb_s *cb);
241
242	twoaday	22	char * request_passphrase (const char title, int flags, int ret_cancel);
243			char * request_passphrase2 (const char title, int flags, int ret_cancel);
244			const char * passphrase_cb (void opaque, const char desc, void *r_hd);
245			char * get_key_userid (const char *keyid);
246			int check_passwd_quality (const char *pass, int strict);
247
248	twoaday	2	#endif /* WPT_GPG_H */